Rewrite the number or expression as requested.0.000281 (Rewrite in scientific notation.)
A. 2.81 ? 10-4
B. 2.81 ? 10-3
C. 2.81 ? 104
D. 2.81 ? 10-5
Answer: A
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Factor the polynomial completely.6x2y2 + 7xy2 - 20y2
A. (2x - 4y)(3x + 5y) B. (3x - 4y)(2x + 5y) C. y2(x - 4)(6x + 5) D. y2(3x - 4)(2x + 5)
Solve the problem.A rectangular garden is bounded on one side by a house and is to be fenced on the other three sides. Fencing material costs $15 per foot for the side parallel to the house and $30 per foot for the other two sides. What are the dimensions of the garden of largest possible area if $1200 is to be spent for fencing material?
A. 42 ft by 9 ft with the long side parallel to the house B. 36 ft by 12 ft with the long side parallel to the house C. 44 ft by 8 ft with the long side parallel to the house D. 40 ft by 10 ft with the long side parallel to the house
Solve the equation using the zero-product property.3x2 - 2x - 5 = 0
A. 
B. 
C. 
D. 
Let 
. Define an operation 
as 
. Check the commutative and associative properties.
? It is __________ (commutative but not associative, associative but not commutative, neither commutative nor associative, associative and commutative). Fill in the blank(s) with the appropriate word(s).